[Q] Wifi won't start on unlocked and rooted phone topic

He everybody. I have a T-mobile Note 2 which I brought with me to New Zealand. T-Mobile gave me an unlock code which worked and most things are fine except that wifi wont work at all. It says it is starting then turns off. I also notice it seems to be trying to turn itself on pretty constantly even though I have it turned off. I tried various wifi repair apps after rooting the phone and they all hang on deleting saved networks.
Wifi tether log shows that starting wifi (cmd) failed.
Any advice on what I can try please to get wifi going?